CN103575516A - Throat expansion and retraction flexibility detection device used for adjustable tail pipe - Google Patents
Throat expansion and retraction flexibility detection device used for adjustable tail pipe Download PDFInfo
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- CN103575516A CN103575516A CN201310465213.7A CN201310465213A CN103575516A CN 103575516 A CN103575516 A CN 103575516A CN 201310465213 A CN201310465213 A CN 201310465213A CN 103575516 A CN103575516 A CN 103575516A
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Abstract
The invention discloses a throat expansion and retraction flexibility detection device used for an adjustable tail pipe. The throat expansion and retraction flexibility detection device used for the adjustable tail pipe comprises a base assembly, a left vertical plate assembly, a right vertical plate assembly, a sliding sleeve assembly, a push-pull disc assembly, a plurality of push-pull rod assemblies, a force sensor, a displacement sensor and a diffusion end limit assembly. Through reasonable designing and installing of all the assemblies, the effect that a synchronous ring serves as a drive part to drive a transmission mechanism of the adjustable tail pipe to drive a plurality of adjustment sheets of the adjustable tail pipe to move is finally achieved, and the stress and displacement amount of the synchronous ring are measured in the moving process of the synchronous ring. According to the embodiment of the throat expansion and retraction flexibility detection device used for the adjustable tail pipe, throat expansion and retraction flexibility of the adjustable tail pipe is detected, so that requirements for researching the throat expansion and retraction flexibility of the adjustable tail pipe in the process of researching the adjustable tail pipe are met.
Description
Technical field
The present invention relates to vehicular field, in particular to a kind of venturi harmomegathus device for detecting flexibility for variable area nozzle.
Background technology
The variable area nozzle of punching engine needs the venturi harmomegathus dirigibility of variable area nozzle to detect in Research and development and production.Due to this variable area nozzle complex structure, the venturi harmomegathus dirigibility of therefore using existing testing tool cannot realize variable area nozzle detects.
Summary of the invention
The present invention is intended to one of solve the problems of the technologies described above at least to a certain extent.For this reason, one object of the present invention is to propose a kind of venturi harmomegathus device for detecting flexibility for variable area nozzle.
To achieve these goals, according to embodiments of the invention, a kind of venturi harmomegathus device for detecting flexibility for variable area nozzle is proposed.The described venturi harmomegathus device for detecting flexibility for variable area nozzle comprises: base assembly, left riser assembly and right riser assembly, described left riser assembly and described right riser inter-module separate and are located on described base assembly, and described left riser assembly is suitable for being connected with the on-expansible end of described variable area nozzle; Sliding sleeve assembly, described sliding sleeve assembly comprises: leading screw, one end of described leading screw is supported on described right riser assembly; Sliding sleeve, described sliding sleeve is set in described leading screw outside to move axially when described screw mandrel rotates; And back shaft, described support sleeve is located at the outside of described sliding sleeve, and described back shaft is all connected with described leading screw with described right riser assembly;
Push-and-pull dish assembly, one end of described push-and-pull dish assembly is connected with described sliding sleeve, and the other end of described push-and-pull dish assembly is located on described left riser assembly movably; A plurality of push-pull rod components, described in each, one end of push-pull rod component is suitable for being connected with the synchronous ring of described variable area nozzle, and the other end is connected with described push-and-pull dish assembly; Power sensor, described power sensor is connected between described sliding sleeve and described push-and-pull dish assembly; Displacement transducer, one end of described displacement transducer is fixed on described right riser assembly, and the other end of described displacement transducer is connected with described push-and-pull dish assembly; And diffusion end limit assembly, described diffusion end limit assembly comprises: ring-type pedestal; A plurality of fixed bars, a plurality of described fixed bars are circumferentially located on described ring-type pedestal at interval along described ring-type pedestal, described in each, one end of fixed bar is connected with described ring-type pedestal, and described in each, the other end of fixed bar is connected with described left riser assembly.
According to the venturi harmomegathus device for detecting flexibility for variable area nozzle of the embodiment of the present invention, by described sliding sleeve assembly, drive described push-and-pull dish assembly and a plurality of described push-pull rod component to apply external force to described synchronous ring, the external force that described synchronous ring is subject to drives the gear train of variable area nozzle to do exercises, the motion of gear train drives a plurality of trimmers of variable area nozzle to realize the adjustment to the geometric configuration of the venturi inwall of variable area nozzle, and by the thrust being subject to or pulling force and displacement in synchronous ring moving process described in described power sensor and described displacement sensor, also by described diffusion end limit assembly, to the expansion segment of variable area nozzle, carry out spacing, prevent variable area nozzle generation transition expansion or damage, thereby realized the detection to the venturi harmomegathus dirigibility of variable area nozzle.
That is to say, in the practical work process of variable area nozzle, a plurality of trimmers change the geometric configuration of the venturi inwall of variable area nozzle under the driving of pressure reduction, and drive transmission device drives described synchronous ring motion.And using described synchronous ring as driving link drive transmission device, drive a plurality of trimmer motions according to the venturi harmomegathus device for detecting flexibility for variable area nozzle of the embodiment of the present invention, and in the moving process of described synchronous ring, measure the stressed and displacement of described synchronous ring, thereby the venturi harmomegathus dirigibility to variable area nozzle is evaluated, and then meet the manufacture claim to the venturi harmomegathus dirigibility of variable area nozzle in the development process of variable area nozzle.
In addition, the venturi harmomegathus device for detecting flexibility for variable area nozzle according to the above embodiment of the present invention can also have following additional technical characterictic:
According to one embodiment of present invention, described left riser assembly comprises: left riser body, and described left riser body is removably connected with described base assembly; Disc riser, the lower edge of described disc riser is connected with the upper edge of described left riser body, and described disc riser is suitable for being removably connected with the on-expansible end of described variable area nozzle; And mandrel, one end of described mandrel is removably connected with described disc riser.
According to one embodiment of present invention, described push-and-pull dish assembly comprises: disc push-and-pull dish, and described disc push-and-pull dish is provided with a plurality of grooves that radially extend along it; Connecting bushing, one end of described connecting bushing is connected on the right surface of described disc push-and-pull dish, and a part for wherein said mandrel is located in described connecting bushing.Thus, when described sliding sleeve moves, drive described push-and-pull dish assembly to move relative to described left riser assembly.
Further, the described venturi harmomegathus device for detecting flexibility for variable area nozzle also comprises: a plurality of hooks, a plurality of described hooks are located on described disc push-and-pull dish, and corresponding one by one with described a plurality of described push-pull rod components.Before the other end of described push-pull rod component is installed to described push-and-pull dish assembly, first the other end of described push-and-pull dish assembly is suspended on described hook, make like this installation of a plurality of described push-pull rod components more convenient, and save manpower.
Alternatively, described in each, push-pull rod component includes: pull bar body; Slide block, described slide block is connected with one end of described pull bar body, and described slide block is located in described groove movably; Holder, described holder is connected with the other end of described pull bar body, and is formed with jaw on described holder, and wherein, the synchronous ring of described variable area nozzle is clamped in described jaw.Like this, the position that described push-pull rod component makes progress in the footpath of described disc push-and-pull dish is adjustable, thereby can adapt to the variable area nozzle of various outer diameter.
Advantageously, one end of a plurality of described push-pull rod components is located in a plurality of described grooves correspondingly.The more reasonable structure of the described venturi harmomegathus device for detecting flexibility for variable area nozzle thus.
According to one embodiment of present invention, a plurality of described push-pull rod components are arranged on described disc push-and-pull dish along the circumferential isolated of described disc push-and-pull dish, and described synchronous ring is stressed more even thus.
Further, the described venturi harmomegathus device for detecting flexibility for variable area nozzle also comprises a plurality of pressing plate parts, and a plurality of described pressing plate parts are along on the outside surface that is circumferentially arranged at interval described ring-type pedestal of described ring-type pedestal and extending axially along described ring-type pedestal.
According to one embodiment of present invention, the described venturi harmomegathus device for detecting flexibility for variable area nozzle also comprises two rollover stand assemblies, described in each, rollover stand assembly comprises: rollover stand, one end of described rollover stand is fixed on described ring-type pedestal, and the other end is fixed on described left riser assembly; Cylinder, described cylinder is located at the middle part of described rollover stand; Spindle nose, described spindle nose is located on described cylinder, and wherein the line of two spindle noses is parallel to ring-type pedestal radially.
Thus, by coordinating of crane or other instrument and described spindle nose, the installation that fits together the first sub-unit of formation for described variable area nozzle, described left riser assembly, described diffusion end limit assembly and two described rollover stand assemblies provides rotating shaft, makes the first sub-unit rotate to be horizontal positioned by vertical placement.
Advantageously, described sliding sleeve is provided with along its axially extended limit sliding chutes, and described back shaft is provided with the stop screw coordinating with described limit sliding chutes, thereby has limited described sliding sleeve with respect to the rotation of described back shaft.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination obviously and is easily understood becoming the description of embodiment, wherein:
Fig. 1 is according to the structural representation of the venturi harmomegathus device for detecting flexibility for variable area nozzle of the embodiment of the present invention;
Fig. 2 is according to the partial structurtes schematic diagram of the sliding sleeve assembly of the venturi harmomegathus device for detecting flexibility for variable area nozzle of the embodiment of the present invention;
Fig. 3 is according to the partial structurtes schematic diagram of the left riser assembly of the venturi harmomegathus device for detecting flexibility for variable area nozzle of the embodiment of the present invention;
Fig. 4 is according to the partial structurtes schematic diagram of the push-and-pull Pan Zujianchu of the venturi harmomegathus device for detecting flexibility for variable area nozzle of the embodiment of the present invention;
Fig. 5 is according to the structural representation of the push-pull rod component of the venturi harmomegathus device for detecting flexibility for variable area nozzle of the embodiment of the present invention;
Fig. 6 is according to the structural representation of the diffusion end limit assembly of the venturi harmomegathus device for detecting flexibility for variable area nozzle of the embodiment of the present invention;
Fig. 7 is according to the structural representation of the rollover stand assembly of the venturi harmomegathus device for detecting flexibility for variable area nozzle of the embodiment of the present invention;
Fig. 8 is according to the structural representation of the pressing plate part of the venturi harmomegathus device for detecting flexibility for variable area nozzle of the embodiment of the present invention.
Description of reference numerals:
Venturi harmomegathus device for detecting flexibility 1 for variable area nozzle, base assembly 10, skeleton 110, upper padding plate 120, lower bolster 130, left riser assembly 20, left riser body 210, vertical plate 211, leveling board 212, reinforcement 213, disc riser 220, mandrel 230, right riser assembly 30, riser 310, base plate 320, strengthen gusset 330, sliding sleeve assembly 40, leading screw 410, sliding sleeve 420, limit sliding chutes 421, back shaft 430, stop screw 431, flange 432, handwheel 440, stop nut 450, push-and-pull dish assembly 50, disc push-and-pull dish 510, groove 511, connecting bushing 520, push-pull rod component 60, pull bar body 610, slide block 620, holder 630, jaw 631, power sensor 71, displacement transducer 72, hook 73, pressing plate part 74, the first plate 741, the second plate 742, recording instrument without paper 75, diffusion end limit assembly 80, ring-type pedestal 810, fixed bar 820, rollover stand assembly 90, rollover stand 910, rollover stand base plate 911, rollover stand riser 912, cylinder 920, spindle nose 930, the synchronous ring 2 of variable area nozzle
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " length ", " thickness ", " on ", orientation or the position relationship of the indication such as D score, " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than indicate or imply that the device of indication or element must have specific orientation, with specific orientation, construct and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " a plurality of " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, also can comprise that the first and second features are not directly contacts but contact by the other feature between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under Second Characteristic and tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
Below with reference to Fig. 1-Fig. 8, describe according to the venturi harmomegathus device for detecting flexibility 1 for variable area nozzle of the embodiment of the present invention.As Figure 1-Figure 8, according to the venturi harmomegathus device for detecting flexibility 1 for variable area nozzle of the embodiment of the present invention, comprise: base assembly 10, left riser assembly 20, right riser assembly 30, sliding sleeve assembly 40, push-and-pull dish assembly 50, a plurality of push-pull rod component 60, power sensor 71, displacement transducer 72 and diffusion end limit assembly 80.
Variable area nozzle, for punching engine, is by changing the geometric configuration of venturi inwall with a kind of device of acceleration air-flow.The gases at high pressure that form after gas fuel burning in punching engine are sprayed and are changed into power by variable area nozzle.The variation of the difference of the pressure between the pressure in the venturi of variable area nozzle and variable area nozzle and motor body drives a plurality of trimmers of variable area nozzle to adjust the geometric configuration of the venturi inwall of variable area nozzle.A plurality of trimmers are all connected with the synchronous ring 2 of variable area nozzle by gear train.
That is to say, back shaft 430 be hollow structure, leading screw 410 is installed on the inside of back shaft 430.For example, as shown in Figure 2, the shaft shoulder of leading screw 410 part can limited nut 450 be fitted in one end of back shaft 430.The supported axle 430 of sliding sleeve 420 and leading screw 410 is supported on right riser assembly 30.For example, as depicted in figs. 1 and 2, have the flange 432 extending radially outwardly along it on back shaft 430, flange 432 can be located at the middle part of back shaft 430.The riser 310 of right riser assembly 30 is provided with the through hole connecting along its thickness direction, and a part for back shaft 430 can be passed through hole, and the flange 432 of back shaft 430 can be connected by being spirally connected with the riser 310 of right riser assembly 30.
The internal thread of the external thread of leading screw 410 and sliding sleeve 420 screws, and rotatablely moving of leading screw 410 makes sliding sleeve 420 moving axially along leading screw 410.When the sense of rotation of leading screw 410 changes, the moving direction of sliding sleeve 420 is also along with change.In other words, sliding sleeve assembly 40 rotates by leading screw 410, has realized the orthoscopic to-and-fro movement of sliding sleeve 420.
One end of push-and-pull dish assembly 50 is connected with sliding sleeve 420, and the other end of push-and-pull dish assembly 50 is located on left riser assembly 20 movably.That is to say, push-and-pull dish assembly 50 can be along with sliding sleeve 420 moves.One end of each push-pull rod component 60 is suitable for being connected with the synchronous ring 2 of variable area nozzle, and the other end of each push-pull rod component 60 is connected with push-and-pull dish assembly 50.
Diffusion end limit assembly 80 comprises: ring-type pedestal 810 and a plurality of fixed bar 820.A plurality of fixed bars 820 are circumferentially located on ring-type pedestal 810 at interval along ring-type pedestal 810.One end of each fixed bar 820 is connected with ring-type pedestal 810, and the other end of each fixed bar 820 is connected with left riser assembly 20.
Below with reference to Fig. 1-Fig. 8, describe, utilize the process that detects the venturi harmomegathus dirigibility of variable area nozzle for the venturi harmomegathus device for detecting flexibility 1 of variable area nozzle:
The on-expansible end of variable area nozzle is fixed on left riser assembly 20, the synchronous ring of variable area nozzle 2 is clamped in to one end of a plurality of push-pull rod components 60.Rotating threaded shaft 410, drives sliding sleeve 420 to move vertically, and sliding sleeve 420 drives push-and-pull dish assembly 50 to move.Because one end of push-pull rod component 60 is connected with push-and-pull dish assembly 50, the other end of push-pull rod component 60 is connected with the synchronous ring of variable area nozzle 2, so the synchronous ring 2 that push-and-pull dish assembly 50 moves final drive variable area nozzle moves.Power sensor 71 is located between sliding sleeve 420 and push-and-pull dish assembly 50, measures thrust or pulling force that push-and-pull dish assembly 50 is subject to, is thrust or pulling force that synchronous ring 2 is subject to.One end of displacement transducer 72 (stiff end) is fixed on right riser assembly 30, and the other end (mobile terminal) is connected with push-and-pull dish assembly 50.Therefore, the displacement of the push-and-pull dish assembly 50 that displacement transducer 72 measures, the namely displacement of synchronous ring 2.
According to the venturi harmomegathus device for detecting flexibility 1 for variable area nozzle of the embodiment of the present invention, by sliding sleeve assembly 40, drive push-and-pull dish assembly 50 and a plurality of push-pull rod component 60 to apply external force to synchronous ring 2, the external force that synchronous ring 2 is subject to drives the gear train of variable area nozzle to do exercises, the motion of gear train drives a plurality of trimmers of variable area nozzle to realize the adjustment to the geometric configuration of the venturi inwall of variable area nozzle, and the thrust being subject to or pulling force and the displacement by power sensor 71 and displacement transducer 72, measured in synchronous ring 2 moving process, also by diffusion, hold the expansion segment of 80 pairs of variable area nozzles of limit assembly to carry out spacing, prevent variable area nozzle generation transition expansion or damage, thereby realized the detection to the venturi harmomegathus dirigibility of variable area nozzle.
That is to say, in the actual motion process of variable area nozzle, a plurality of trimmers change the geometric configuration of the venturi inwall of variable area nozzle under the driving of pressure reduction, and drive transmission device drives synchronous ring 2 motions.And using synchronous ring 2 as driving link drive transmission device, drive a plurality of trimmer motions according to the venturi harmomegathus device for detecting flexibility 1 for variable area nozzle of the embodiment of the present invention, and in the moving process of synchronous ring 2, measure the stressed and displacement of synchronous ring 2, thereby the venturi harmomegathus dirigibility to variable area nozzle is evaluated, and then meet the manufacture claim to the venturi harmomegathus dirigibility of variable area nozzle in the development process of variable area nozzle.
In one embodiment of the invention, the range of displacement transducer 72 can be 0 millimeter-300 millimeters, and measuring accuracy can be 0.1 millimeter.The range of power sensor 71 can be 0 newton-3000 newton, and measuring accuracy can be 0.1 newton.That is to say, for the venturi harmomegathus device for detecting flexibility 1 of variable area nozzle, can meet: the scope that the synchronous ring 2 of variable area nozzle moves axially stroke is 0 millimeter-300 millimeters, and measuring accuracy is 0.1 millimeter; The thrust that the synchronous ring 2 of variable area nozzle is subject to or the measurement range of pulling force are 0 newton-3000 newton, and measuring accuracy is 0.1 newton.
Further, as shown in Figure 1, for the venturi harmomegathus device for detecting flexibility 1 of variable area nozzle, can also comprise recording instrument without paper 75.Recording instrument without paper 75 is connected with displacement transducer 72 with power sensor 71 respectively, for storing the thrust that measures with output detections process power sensor 71 or the size of pulling force, and the size of the displacement that measures of displacement transducer 72.Therefore, according to the venturi harmomegathus device for detecting flexibility 1 for variable area nozzle of the embodiment of the present invention, can realize testing process, thrust or draw force measurement and the measurement of displacement to measurement data real-time storage and output.
Here it should be noted that, due to variable area nozzle and for the impact of the movable part own wt of the venturi harmomegathus device for detecting flexibility 1 of variable area nozzle, during rotary screw, first need to overcome the impact of above-mentioned deadweight.Therefore when detecting, the data that detect need to deduct the value producing for overcoming above-mentioned effect of weight accordingly.
In one embodiment of the invention, as shown in Figure 1, base assembly 10 comprises skeleton 110, four upper padding plates 120 and four lower bolsters 130.Skeleton 110 can be welded by many rectangle shaped steel.Four upper padding plates 120,, are divided on two groups of upper surfaces that are welded on respectively skeleton 110 by one group between two.Four lower bolsters 130,, are divided on two groups of lower surfaces that are welded on respectively skeleton 110, for support frame 110 by one group between two.Wherein one group of upper padding plate 120 is connected by being spirally connected with the bottom of left riser assembly 20, and another group upper padding plate 120 is connected by being spirally connected with the bottom of right riser assembly 30.Base assembly 10 can also be connected with outer cover (scheming not shown) by being spirally connected.
As shown in figures 1 and 3, left riser assembly 20 can comprise left riser body 210, disc riser 220 and mandrel 230.Left riser body 210 is removably connected with base assembly 10, for example connected by being spirally connected.Particularly, left riser body 210 can comprise vertical plate 211, two leveling boards 212 and a plurality of reinforcements 213, the two ends of the bottom of vertical plate 211 can be weldingly connected with two leveling boards 212 respectively, and vertical plate 211 can extend upward along the upper surface of leveling board 212.Each reinforcement 213 is connected with leveling board 212 with vertical plate 211 respectively.
Wherein, on leveling board 212, can be provided with two slotted holes that extend along the length direction of leveling board 212.Two slotted holes can lay respectively at the both sides of vertical plate 211.Bolt can be connected through the slotted hole of leveling board 212 and the upper padding plate 120 of base assembly 10.Thus, not only can make left riser body 210 be connected with one group of upper padding plate 120 wherein, also make the position of left riser assembly 20 on base assembly 10 adjust.Adjusting direction is the length direction of leveling board 212, namely the length direction of base assembly 10.
Thus, not only can make right riser assembly 30 be connected with the upper padding plate 120 of base assembly 10, can also make the position of right riser assembly 30 on base assembly 10 adjust.Adjusting direction is the length direction of base plate 320, namely the length direction of base assembly 10.
Advantageously, base plate 320 is identical with size with the structure of leveling board 212, and reinforcement 213 is identical with size with the structure of strengthening gusset 330.Can save mould thus, thereby save manufacturing cost.
The lower edge of disc riser 220 is connected with the upper edge of left riser assembly 20.Disc riser 220 is suitable for being removably connected with the on-expansible end of variable area nozzle.For example, connected by being spirally connected.One end of mandrel 230 is removably connected with disc riser 220.For example, connected by being spirally connected.
As shown in Figure 2, in one embodiment of the invention, sliding sleeve assembly 40 can also comprise the handwheel 440 of being convenient to drive leading screw 410 rotations.Handwheel 440 can be connected by keyway arrangements with leading screw 410.
In some embodiments of the invention, on sliding sleeve 420, can be provided with the axially extended limit sliding chutes 421 along sliding sleeve 420, on back shaft 430, can be provided with the stop screw 431 coordinating with limit sliding chutes 421, thereby limit the rotation of sliding sleeve 420 with respect to back shaft 430.
As shown in Figure 4, in one embodiment of the invention, push-and-pull dish assembly 50 can comprise disc push-and-pull dish 510 and connecting bushing 520.On disc push-and-pull dish 510, can be provided with a plurality of grooves 511 that radially extend along disc push-and-pull dish 510.One end of connecting bushing 520 is connected on the right surface of disc push-and-pull dish 510, and a part for mandrel 230 can be located in connecting bushing 520.
That is to say, the structure that connecting bushing 520 is hollow, mandrel 230 is located in connecting bushing 520, and one end of mandrel 230 is connected with left riser body 210.Therefore, when the sliding sleeve 420 of sliding sleeve assembly 40 moves, drive push-and-pull dish assembly 50 to move relative to left riser assembly 20, now, connecting bushing 520 can moving axially along mandrel 230.
In an optional embodiment of the present invention, as shown in Figure 1 and Figure 4, each push-pull rod component 60 can comprise: pull bar body 610, slide block 620 and holder 630.Slide block 620 is connected with one end of pull bar body 610, and slide block 620 is located in groove 511 movably.Holder 630 is connected with the other end of pull bar body 610, and is formed with jaw 631 on holder 630, and wherein, the synchronous ring 2 of variable area nozzle is clamped in jaw 631.
The slide block 620 of push-pull rod component 60 can be in the interior slip of groove 511.The length direction of groove 511 is the radially square of disc push-and-pull dish 510, so groove 511 can radially inwardly or outwards moving along disc push-and-pull dish 510.Like this, the position that push-pull rod component 60 is made progress in the footpath of disc push-and-pull dish 510 is adjustable, thereby can adapt to the variable area nozzle of various outer diameter.That is to say, the position that the slide block 620 of push-pull rod component 60 makes progress in the footpath of disc push-and-pull dish 510 can be adjusted according to the physical size of variable area nozzle.For the venturi harmomegathus device for detecting flexibility 1 of variable area nozzle, can detect thus the variable area nozzle of various outer diameter, accommodation is wider, uses more convenient.In a specific embodiment of the present invention, the scope of the external diameter of the variable area nozzle that can detect for the venturi harmomegathus device for detecting flexibility 1 of variable area nozzle is 550 millimeters-850 millimeters.
Further, one end of a plurality of push-pull rod components 60 is engaged in a plurality of grooves 511 correspondingly.That is to say, the quantity of push-pull rod component 60 is identical with the quantity of groove 511.The slide block 620 of a push-pull rod component 60 can be engaged in a groove 511.Make thus the more reasonable structure for the venturi harmomegathus device for detecting flexibility 1 of variable area nozzle.
Advantageously, a plurality of push-pull rod components 60 can be arranged on disc push-and-pull dish 510 along the circumferential isolated of disc push-and-pull dish 510, make thus the stressed more even of synchronous ring 2.Closer, a plurality of grooves 511 are circumferentially evenly arranged along disc push-and-pull dish 510, holder 630 being circumferentially evenly arranged along synchronous ring 2 of a plurality of push-pull rod components 60.
In one embodiment of the invention, the venturi harmomegathus device for detecting flexibility 1 for variable area nozzle can also comprise a plurality of pressing plate parts 74.A plurality of pressing plate parts 74 can be arranged on the outside surface of ring-type pedestal 810 at interval along the circumferential of ring-type pedestal 810, and pressing plate part 74 can extending axially along ring-type pedestal 810.Thus, the acting in conjunction by a plurality of pressing plate parts 74 with diffusion end limit assembly 80, can realize the expansion segment of variable area nozzle is carried out to safe spacing, avoids variable area nozzle generation transition expansion or damages.
In a specific embodiment of the present invention, as shown in Figure 8, pressing plate part 74 can comprise: the first plate 741 and the second plate 742, the second plates 742 are vertically connected on the first plate 741.The first plate 741 is provided with and the be spirally connected through hole of use of ring-type pedestal 810.Can make thus a plurality of pressing plate parts 74 be arranged on more easily on the ring-type pedestal 810 of diffusion end limit assembly 80.
In one embodiment of the invention, the venturi harmomegathus device for detecting flexibility 1 for variable area nozzle can also comprise a plurality of hooks 73.A plurality of hooks 73 can be located on disc push-and-pull dish 510, and a plurality of hook 73 can be corresponding one by one with a plurality of push-pull rod components 60.In other words, link up with 73 quantity and equate with the quantity of push-pull rod component 60, a hook 73 can hook a push-pull rod component 60.
In one embodiment of the invention, the venturi harmomegathus device for detecting flexibility 1 for variable area nozzle can also comprise two rollover stand assemblies 90.As shown in Figure 7, each rollover stand assembly 90 can comprise: rollover stand 910, cylinder 920 and spindle nose 930.One end of rollover stand 910 can be fixed on ring-type pedestal 810, and the other end of rollover stand 910 can be fixed on left riser assembly 20.For example, one end of rollover stand 910 can be spirally connected and be fixed on ring-type pedestal 810, and the other end of rollover stand 910 can be spirally connected and be fixed on the disc riser 220 on left riser assembly 20.Cylinder 920 can be located on rollover stand 910.Spindle nose 930 can be located on cylinder 920, and wherein the line of two spindle noses 930 is parallel to ring-type pedestal 810 radially.That is to say, two rollover stand assemblies 90 are symmetrical arranged.
In a specific embodiment of the present invention, rollover stand 910 can comprise rollover stand base plate 911 and two rollover stand risers 912, two rollover stand risers 912 can be arranged on the two ends of rollover stand base plate 911 symmetrically, and two rollover stand risers 912 can extend to the direction away from rollover stand base plate 911.Rollover stand riser 912 can form the shape of falling L.Wherein, the bottom surface of cylinder 920 and rollover stand base plate 912 can be weldingly connected, and the side face of cylinder 920 and rollover stand riser 912 can be weldingly connected.Spindle nose 930 can be welded on the top of cylinder 920.
Due to the architectural feature of variable area nozzle, variable area nozzle is arranged on the front vertical placement of venturi harmomegathus device for detecting flexibility 1 for variable area nozzle.Assembling process at the venturi harmomegathus device for detecting flexibility 1 for variable area nozzle, first the on-expansible end of variable area nozzle is connected with left riser assembly 20, then diffusion end limit assembly 80 is set in outside variable area nozzle, and the other end of a plurality of fixed bars 820 is connected with left riser assembly 20, then one end of two rollover stand assemblies 90 is arranged on ring-type pedestal 810, the other end is arranged on left riser assembly 20.Like this, variable area nozzle, left riser assembly 20, diffusion end limit assembly 80 and two rollover stand assemblies 90 fit together and form the first sub-unit.Right riser assembly 30 and sliding sleeve assembly 40 fit together and form the second sub-unit.By crane or other instrument, with the cooperation of spindle nose 930, the first sub-unit rotation is made to the first sub-unit horizontal positioned and is connected with push-and-pull dish assembly 50.That is to say, the effect of rollover stand assembly 90 is that the installation of the first sub-unit provides rotating shaft, makes the first sub-unit rotate to be horizontal positioned by vertical placement.
After the first sub-unit, push-and-pull dish assembly 50 and the second sub-unit are all arranged on base assembly 10, one end of a plurality of push-pull rod components 60 is connected with the synchronous ring 2 of variable area nozzle, the other end of a plurality of push-pull rod components 60 is first suspended on hook 73, facilitates like this installation of a plurality of push-pull rod components 60.That is to say, before the other end of push-pull rod component 60 is installed to push-and-pull dish assembly 50, first a plurality of push-pull rod components 60 are suspended on hook 73, not only save manpower but also easy for installation.
In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention in the situation that not departing from principle of the present invention and aim, modification, replacement and modification.
Claims (10)
1. for a venturi harmomegathus device for detecting flexibility for variable area nozzle, it is characterized in that, comprising:
Base assembly, left riser assembly and right riser assembly, described left riser assembly and described right riser inter-module separate and are located on described base assembly, and described left riser assembly is suitable for being connected with the on-expansible end of described variable area nozzle;
Sliding sleeve assembly, described sliding sleeve assembly comprises:
Leading screw, one end of described leading screw is supported on described right riser assembly;
Sliding sleeve, described sliding sleeve is set in described leading screw outside to move axially when described screw mandrel rotates; With
Back shaft, described support sleeve is located at the outside of described sliding sleeve, and described back shaft is all connected with described leading screw with described right riser assembly;
Push-and-pull dish assembly, one end of described push-and-pull dish assembly is connected with described sliding sleeve, and the other end of described push-and-pull dish assembly is located on described left riser assembly movably;
A plurality of push-pull rod components, described in each, one end of push-pull rod component is suitable for being connected with the synchronous ring of described variable area nozzle, and the other end is connected with described push-and-pull dish assembly;
Power sensor, described power sensor is connected between described sliding sleeve and described push-and-pull dish assembly;
Displacement transducer, one end of described displacement transducer is fixed on described right riser assembly, and the other end of described displacement transducer is connected with described push-and-pull dish assembly; And
Diffusion end limit assembly, described diffusion end limit assembly comprises:
Ring-type pedestal;
A plurality of fixed bars, a plurality of described fixed bars are circumferentially located on described ring-type pedestal at interval along described ring-type pedestal, described in each, one end of fixed bar is connected with described ring-type pedestal, and described in each, the other end of fixed bar is connected with described left riser assembly.
2. the venturi harmomegathus device for detecting flexibility for variable area nozzle according to claim 1, is characterized in that, described left riser assembly comprises:
Left riser body, described left riser body is removably connected with described base assembly;
Disc riser, the lower edge of described disc riser is connected with the upper edge of described left riser body, and described disc riser is suitable for being removably connected with the on-expansible end of described variable area nozzle; And
Mandrel, one end of described mandrel is removably connected with described disc riser.
3. the venturi harmomegathus device for detecting flexibility for variable area nozzle according to claim 2, is characterized in that, described push-and-pull dish assembly comprises:
Disc push-and-pull dish, described disc push-and-pull dish is provided with a plurality of grooves that radially extend along it;
Connecting bushing, one end of described connecting bushing is connected on the right surface of described disc push-and-pull dish, and a part for wherein said mandrel is located in described connecting bushing.
4. the venturi harmomegathus device for detecting flexibility for variable area nozzle according to claim 3, is characterized in that, also comprises: a plurality of hooks, a plurality of described hooks are located on described disc push-and-pull dish, and corresponding one by one with described a plurality of described push-pull rod components.
5. the venturi harmomegathus device for detecting flexibility for variable area nozzle according to claim 3, is characterized in that, described in each, push-pull rod component includes:
Pull bar body;
Slide block, described slide block is connected with one end of described pull bar body, and described slide block is located in described groove movably;
Holder, described holder is connected with the other end of described pull bar body, and is formed with jaw on described holder, and wherein, the synchronous ring of described variable area nozzle is clamped in described jaw.
6. the venturi harmomegathus device for detecting flexibility for variable area nozzle according to claim 5, is characterized in that, one end of a plurality of described push-pull rod components is located in a plurality of described grooves correspondingly.
7. the venturi harmomegathus device for detecting flexibility for variable area nozzle according to claim 6, is characterized in that, a plurality of described push-pull rod components are arranged on described disc push-and-pull dish along the circumferential isolated of described disc push-and-pull dish.
8. the venturi harmomegathus device for detecting flexibility for variable area nozzle according to claim 1, it is characterized in that, also comprise a plurality of pressing plate parts, a plurality of described pressing plate parts are along on the outside surface that is circumferentially arranged at interval described ring-type pedestal of described ring-type pedestal and extending axially along described ring-type pedestal.
9. the venturi harmomegathus device for detecting flexibility for variable area nozzle according to claim 1, is characterized in that, also comprise two rollover stand assemblies, described in each, rollover stand assembly comprises:
Rollover stand, one end of described rollover stand is fixed on described ring-type pedestal, and the other end is fixed on described left riser assembly;
Cylinder, described cylinder is located at the middle part of described rollover stand;
Spindle nose, described spindle nose is located on described cylinder, and wherein the line of two spindle noses is parallel to ring-type pedestal radially.
10. the venturi harmomegathus device for detecting flexibility for variable area nozzle according to claim 1, is characterized in that, described sliding sleeve is provided with along its axially extended limit sliding chutes, and described back shaft is provided with the stop screw coordinating with described limit sliding chutes.
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| CN201310465213.7A CN103575516B (en) | 2013-10-08 | 2013-10-08 | For the venturi harmomegathus device for detecting flexibility of variable area nozzle |
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| CN201310465213.7A CN103575516B (en) | 2013-10-08 | 2013-10-08 | For the venturi harmomegathus device for detecting flexibility of variable area nozzle |
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| CN113494385A (en) * | 2021-06-25 | 2021-10-12 | 北京理工大学 | Key structure parameter optimization method for reliable movement of engine tail nozzle |
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| CN113494385A (en) * | 2021-06-25 | 2021-10-12 | 北京理工大学 | Key structure parameter optimization method for reliable movement of engine tail nozzle |
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|---|---|
| CN103575516B (en) | 2016-01-27 |
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